Folding hairbrush



FIG. 1 is a perspective view of a folding hairbrush showing my new design;

FIG. 2 is a bottom plan view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is an end elevational view thereof;

FIG. 5 is an elevational view of the opposite end of the hair brush as it appears when folded;

FIG. 6 is a top plan view of the hairbrush as shown in FIG. 5;

FIG. 7 is a side elevational view of the hair brush as shown in FIG. 5;

FIG. 8 is an elevational view of the opposite side thereof. 

The ornamental design for a folding hairbrush, substantially as shown and described. 